Ollie's comedy partner (4)
I believe the answer is:
stan
'ollie's comedy partner' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for stan that I've seen before include "- Getz, jazz musician" , "Laurel perhaps" , "- Laurel, Hardy's partner" , "One of the comic duo" , "Eminem hit; man's name" .)